Why can the customer base grow while retention falls?
Because new-customer acquisition can offset losses from the opening base. A business may end the period with more total customers and still have lost a meaningful share of the customers it started with.
What is the difference between retention rate and churn rate?
In this worksheet they are complements for the same opening base and period. Retention shows the share of the starting customers who stayed, while churn shows the share who were not retained.
Why does the calculator subtract new customers from the ending count?
Because retention should measure how many of the original customers stayed. If new customers were left in the ending figure, the result could overstate true retention.
Is a target retention rate the same as a forecast?
No. It is a planning threshold for the same period and opening base entered here. It does not predict future retention or customer lifetime value on its own.
What is a good customer retention rate?
There is no single good number. The right benchmark depends on the industry, contract length, switching costs, and whether you are comparing monthly, quarterly, or annual retention.
Should new customers be included in the formula?
No. New customers are removed from the ending total so the calculator can isolate how many of the starting customers were retained through the period.
How often should I measure retention?
Measure it on the same schedule your business already uses for customer reporting, such as monthly, quarterly, or annually. The important part is keeping the window consistent from one period to the next.
Is this the same as cohort retention?
No. This page measures period retention for the whole base. Cohort retention tracks a specific signup group over time, which is more precise for product and lifecycle analysis.
How does retention connect to customer lifetime value?
Higher retention usually means customers stay longer, which gives the business more time to recover acquisition cost and generate lifetime value. That relationship is one reason retention is important in SaaS and subscription businesses.
Can I use this calculator for SaaS?
Yes. It is useful for SaaS, subscription services, and any business that wants a simple period view of retained customers, churn, and target gaps. For deeper SaaS analysis, pair it with cohort retention and revenue retention metrics.
How do I compare monthly retention with annual retention?
Use compounding rather than simple multiplication. The calculator converts the entered period into a monthly-equivalent retention rate and annualized churn so monthly, quarterly, and annual retention can be compared more fairly.
What counts as an active customer for retention rate?
Use the customer definition your business reports consistently, such as paying subscribers, customers with a purchase in the period, active contracts, or accounts that meet a usage threshold. Do not mix trials, reactivations, paused accounts, or duplicate records unless your reporting policy says they belong in the same customer base.
Should I compare my result with customer retention benchmarks?
Yes, but only after matching the benchmark to the same business model, reporting period, and active-customer definition. A SaaS subscription benchmark may not fit an ecommerce repeat-purchase window, and an annual services-renewal benchmark should not be compared directly with a monthly app retention rate without period conversion.
How is customer retention rate different from net revenue retention?
Customer retention rate counts customers or accounts. Net revenue retention looks at revenue from the existing customer base after churn, downgrades, upgrades, and expansion. A company can keep a high share of customers but still have weak revenue retention if retained customers downgrade, or it can lose some customers while expansion from the remaining base offsets the revenue loss.
